https://chejinying.com/tech/tags/service-mesh/ Recent content in Service-Mesh on Jinying Tech Blog Hugo en-us Sun, 24 May 2026 20:59:08 +0800 https://chejinying.com/tech/posts/distributed-system/consul/ Sun, 24 May 2026 20:59:08 +0800 https://chejinying.com/tech/posts/distributed-system/consul/ <h2 id="background--motivation">Background &amp; Motivation</h2> <p>In traditional infrastructure, applications communicated via static IP addresses and hardware load balancers. As architectures evolved into dynamic microservices and cloud-native environments (like Kubernetes or auto-scaling VM groups), IP addresses became ephemeral. Services could start, stop, or move at any time.</p> <p>This created two major problems:</p> <ol> <li><strong>Service Discovery</strong>: How do services find each other when IPs constantly change?</li> <li><strong>Security &amp; Routing</strong>: How do we secure communication (mTLS) and intelligently route traffic without hardcoding logic into every application?</li> </ol> <p>HashiCorp introduced Consul to solve these challenges by providing a centralized registry and a unified control plane.</p>